I put in Text::Boilerplate, one of billions upon billions of templating systems. It really needs a substantial upgrade, but for where I was at the time, I'm proud of it. (Just don't look too closely at the code. *grin*)

There's always more stuff to do for modules. For example:

A module to download and maintain sound files from these fun digital microcassette recorders on Linux platforms

A module to deal with QuarkXPress files

As far as I know, there are no Perl modules dealing with musical notation. Wouldn't it be great if there were a module that you could use to create files which could be printed out as scores and played back as midi or audio?

There's no reason to worry about being overly specific; if you can think of ten other people that might use the module, it's probably worth doing. (Opinions may vary on that one.)